diff --git a/package.json b/package.json
index f59416e..26ec73b 100644
--- a/package.json
+++ b/package.json
@@ -10,11 +10,11 @@
     "spdy-push": "^1.0.0"
   },
   "devDependencies": {
-    "bluebird": "^2.3.4",
+    "bluebird": "^3.1.1",
     "istanbul": "0",
-    "mocha": "1",
-    "polyfills": "^1.5.0",
-    "spdy": "^1.28.1",
+    "mocha": "2.3.4",
+    "polyfills": "^2.1.1",
+    "spdy": "^3.0.0",
     "spdy-keys": "0.0.0"
   },
   "scripts": {